Tracking metadata changes during data copy in a storage system

Details Tracking metadata changes during data copy in a storage system Tracking metadata changes during data copy in a storage system

2008-09-30

2011-10-25

Lane, John (Department: 2185)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S111000, C711S156000, C711S161000, C711S165000, C707S640000

Reexamination Certificate

active

08046552

ABSTRACT:
Embodiments include methods, apparatus, and systems for tracking metadata changes during copying in a storage system. One embodiment includes a method that uses a bitmap and two fences to track changes to metadata while a copy of the metadata is being transferred from a source disk array to a destination disk array.

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